This controls whether ports given by "udp_content_delivery_ports_orig" and
"udp_content_delivery_ports_orig" are in terms of the UDP packet's
destination port or by the Connection's "responder" port (the former is
the unchanged default behavior).
The Zeek code base has very inconsistent #includes. Many sources
included a few headers, and those headers included other headers, and
in the end, nearly everything is included everywhere, so missing
#includes were never noticed. Another side effect was a lot of header
bloat which slows down the build.
First step to fix it: in each source file, its own header should be
included first to verify that each header's includes are correct, and
none is missing.
After adding the missing #includes, I replaced lots of #includes
inside headers with class forward declarations. In most headers,
object pointers are never referenced, so declaring the function
prototypes with forward-declared classes is just fine.
This patch speeds up the build by 19%, because each compilation unit
gets smaller. Here are the "time" numbers for a fresh build (with a
warm page cache but without ccache):
Before this patch:
3144.94user 161.63system 3:02.87elapsed 1808%CPU (0avgtext+0avgdata 2168608maxresident)k
760inputs+12008400outputs (1511major+57747204minor)pagefaults 0swaps
After this patch:
2565.17user 141.83system 2:25.46elapsed 1860%CPU (0avgtext+0avgdata 1489076maxresident)k
72576inputs+9130920outputs (1667major+49400430minor)pagefaults 0swaps
If dpd_match_only_beginning is disabled, matches of protocol signatures
can be handeld using protocol_late_match. To prevent further matching in
this case, dpd_late_match_stop may be activated.
To be more exact: &encrypt, &mergeable, &rotate_interval, &rotate_size
Also removes no longer used redef-able constants:
log_rotate_interval, log_max_size, log_encryption_key
GH-243
* origin/topic/robin/gh-239:
Undo a change to btest.cfg from a recent commit
Updating submodule.
Fix zeek-wrapper
Update for renaming BroControl to ZeekControl.
Updating submodule.
GH-239: Rename bro to zeek, bro-config to zeek-config, and bro-path-dev to zeek-path-dev.
* origin/topic/johanna/243:
Fix missing include file on Linux
Deprecations: Update NEWS, and tie up a few loose ends.
Remove support for using &&/|| with patterns.
Remove RemoteSerializer and related code/types.
Remove PersistenceSerializer.
Remove synchrnized and persistent attributes.
This also installs symlinks from "zeek" and "bro-config" to a wrapper
script that prints a deprecation warning.
The btests pass, but this is still WIP. broctl renaming is still
missing.
#239
* 'fatemabw/bro' of https://github.com/fatemabw/bro:
DNSSEC support in Bro
I made several changes:
- renamed event/record types
- reformatted the info added to dns.log
- removed the "addl" scripts that added extended dnssec info to dns.log
- simplifications/improvements to the internal parsing logic
Old event prototypes have changed and the events are broken right
now and may be removed in favor of the new generic "dhcp_message"
event.
DHCP option parsing is abstracted from the main code base of the
protocol parser and are all now located in their own file.
Documentation, tests, and final code cleanup are still pending.
Add the folowing option types:
- 55 Parameters Request List;
- 58 Renewal time;
- 59 Rebinding time;
- 61 Client Identifier;
- 82 Relay Agent Information.
Extend the following events with new parameters, specifically:
- dhcp_discover exports client identifier and parameters request list;
- dhcp_request exports client_identifier and parameters request list;
- dhcp_ack exports rebinding time, renewal time and list of suboptions value of
dhcp relay agent information option;
- dhcp_inform exports parameters request list.
Add option type specific variables within the scope of DHCP module
(see src/analyzer/protocol/dhcp/types.bif).
Move protocol specific variables "dhcp_msg" and "dhcp_router_list" from scope Global to DHCP::
and adapt inet_net_var in src/NetVar.cc consequently.
Extend src/analyzer/protocols/dhcp/main.bro to handle the new events and to log
dhcp_ack, dhcp_request and dhcp_discover.
Modify scripts/policy/protocols/dhcp/known-devices-and-hostnames.bro to
include new events' variables.
Broke out the stats collection into a bunch of new Bifs
in stats.bif. Scripts that use stats collection functions
have also been updated. More work to do.
TCP_Reassembler can now keep a history of old TCP segments using the
`tcp_max_old_segments` option. A value of zero will disable it.
An overlapping segment with different data can indicate a possible
TCP injection attack. The rexmit_inconsistency event will fire if this
is the case.
* origin/topic/seth/more-file-type-ident-fixes:
File API updates complete.
Fixes for file type identification.
API changes to file analysis mime type detection.
Make HTTP 206 reassembly require ETags by default.
More file type identification improvements
Fix an issue with files having gaps before the bof_buffer is filled.
Fix an issue with packet loss in http file reporting.
Adding WOFF fonts to file type identification.
Extended JSON matching and added OCSP responses.
Another large signature update.
More signature updates.
Even more file type ident clean up.
Lots of fixes for file type identification.
BIT-1368 #merged
Under remote communication overload conditions, the child->parent
chunked IO may start rejecting chunks if over the hard cap. Some
messages are made of two chunks, accepting the first part, but rejecting
the second can put the parent in a bad state and the next two chunks it
reads are likely to cause the error.
This patch just removes the rejecting functionality completely and so
now relies solely on shutting down remote peer connections to help
alleviate temporary overload conditions. The
"chunked_io_buffer_soft_cap" script variable can now tune when this
shutting down starts happening and the default setting is now double
what it used to be. For constant overload conditions, communication.log
should keep stating "queue to parent filling up; shutting down heaviest
connection".
An alternative to completely removing the hard cap rejection code could
be ensuring that messages that involve a pair of chunks can never have
the second chunk be rejected when attempting to write it.
Addresses BIT-1376
Removed "file_mime_type" and "file_mime_types" event, replacing them
with a new event called "file_metadata_inferred". It has a record
argument of type "inferred_file_metadata", which contains the mime type
information that the earlier events used to supply. The idea here is
that future extensions to the record with new metadata will be less
likely to break user code than the alternatives (adding new events or
new event parameters).
Addresses BIT-1368.
* origin/topic/jsiwek/file-signatures:
File type detection changes and fix https.log {orig,resp}_fuids fields.
Various minor changes related to file mime type detection.
Refactor common MIME magic matching code.
Replace libmagic w/ Bro signatures for file MIME type identification.
Conflicts:
scripts/base/init-default.bro
testing/btest/Baseline/coverage.bare-load-baseline/canonified_loaded_scripts.log
testing/btest/Baseline/coverage.default-load-baseline/canonified_loaded_scripts.log
BIT-1143 #merged
